复射线展开法分析圆柱面对平面波散射的精度问题  

Error evaluation for scattering of cylinder surface by complex ray expansion method

作　　者：赵为粮[1] 杜惠平[1] 毛幼菊[1] 阮颖铮[2] 

机构地区：[1]重庆邮电学院,重庆400065 [2]电子科技大学,四川成都610054

出　　处：《电波科学学报》2002年第4期358-364,共7页Chinese Journal of Radio Science

摘　　要：讨论了用复射线展开法计算圆柱面对入射平面波散射时的计算误差特性 ,提出了控制其计算精度的复射线展开参数选择方法 ,证实了通过恰当选择展开参数可以有效地提高计算精度 ,实现误差控制。The computational error characteristic of the complex ray expansion method (CREM), while it is applied to evaluating the scattering of cylinder surface with an incident plane wave, is discussed in this paper. A novel collective definition on the parameters of the CREM is proposed in order to simplify the modeling of computational error. It is verified the accuracy of numerical results can be improved greatly by appropriate selection of the parameters.

关 键 词：复射线展开法 圆柱面 入射平面波 电磁散射 拟和精度 平面波散射 

分 类 号：TN011[电子电信—物理电子学]